Inhaler



(No Model.)

B. B. ADAMS.

INHALER.

" No. 350,711. Patented Oct. 12, 1886.

WITNESSES: Y INVENTOR /fi r/ W. A damw JZ/ BY W Q M/ ZZ Lg ATTORNEY N PETERS. Photniilhogmpllur. Washmgtun. D.C.

w U W PATENT EErcE.

ED\VIN B. ADAMS, OF SPRINGFIELD, MASSACHUSETTS.

INHALER.

SPECIFICATION forming part of Letters Patent No. 350,711, dated October 12, 1886.

Application tiled October 14, 1885.

To all whom it may concern.-

Be it known that I, EDWIN l3. ADAMS, a citizen of the United States, residing in Springfield, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Inhalers, of which the followis a specification, reference being had to the accompanying drawings.

My invention relates more particularly to improvements in instruments for administering anaesthetics.

The object of my invention is to produce a simple, cheap, and easilyoperative device, which shall be free from the objectionable features found in many of the inhalers now in use 5 and to that end my invention consists in the construption and arrangement herein set out,whereby the beneficial objects of my invention are attained.

In the accompanying drawings, in which likelett-ers of reference indicatelike parts, Figurel is alongitudinal vertical section. Fig. 2 is a view as seen from the front or face end of the device. Fig. 3 is a perspective, and Fig. 4 is a viewof a cap for the partial closing of the shell.

Referring now to the drawings in detail, a indicates acylindrical case or shell of metal, open at one end, and hhving the partitions b c situated at the opposite end, as shown. The space between these two partitions is divided by a partition, (I. The partition 0 has two openings provided with valves e and f, the valve 6 being adapted to open outward or toward the patient to allow the vapor or gas to pass from the sponge chambcrto thepatient, to be inhaled. The valvef is adapted to open outward or away from thepatient, allowing the exhalation to pass into the chamber 9, which chamber is provided with an outlet or opening, 3', to allow the exhalation to escape. The valves are nicely adjusted, so that they will be operated by the current produced by the breathing of thepatient. A face-shield or hood, k, of rubber or other semirigid materiahhavi ng its edges shaped to approximately conform to the contour of the face, is secured to the end of the shell (I, and preferably held in place by a clasp or band, Z, passing around the shell (1, and held in place with a screw, m. In addition to the hood 7;,Iprovide an auxiliary hood,

Serial No. 179.578. (No model.)

a, of a much softer and more pliable material than the principal hood 7.: which I attach to the hood k in such manner that the edge of the auxiliary hood projects beyond the edge of the hood 7. The principal hood, 7.1, gives the requisite rigidity, while the soft pliable projecting auxiliary hood or gives the desired softness to enable the hood to conform readily to any face without discomfort to the patient.

The opening from the spongechambcr to the compartment his covered with a cap, 0, having openings in its si dcs, thus avoiding the possibility of any fluid passing through,which might occur were the openings direct.

The valve 6 consists of a thin light disk, preferably of hard rubber, and is supported in place by a screw or stud, p,which is supported. by the cross-bar 1-.

The valve f is of like shape and material as the valve 0, and is supported by a screw or stud, s, which in turn is supported by a post, i.

The direction of the currents is indicated by the arrows in the drawings.

If the device is used for administering ether or other like antcsthetics, the sponge is saturated in ether. before being placed in the spongechamber; or the liquid may be turned in upon the sponge while in place. As the air is drawn in it passes through the saturated sponge and becomes charged with the anaesthetic vapor, and passing into the chamber 71, and thence through the valve 0, is inhaled by the patient. \Vhen, however, the air is exhaled, it closes the valve 0 and opens the valve], allowing it to escape, the operation being automatic.

If it is desired to use thedcvice for administering gas or vapor generated or stored in some other chamber, then a cap, a, provided with a tube, 1;, is placed over the open end of the shell (1, and a rubber tube is connected therewith.

It will be seen that with this device the patient will not breathe the same air but once, and that the operation, application, and use of the device is simple and complete.

Having, therefore, described my invention, what I claim, and desire to secure by Letters Patent, is

An inhaler for medicated vapors, consisting, essentially, of a cylindrical shell or casing, (1, having an opening leading to the exhaling ICO in the partition 0 to the chamber h from with- IO out, and a valve; f, to close the opening to the chamber 9 from within, substantially as described.

EDWIN B. ADAMS.

\Vitnesses:

ALLEN WVEBsTEB, BERTHA WEBsTER. 

